Statements Of Consolidated Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2015		Jun. 30, 2014	Jun. 30, 2013
Statement of Cash Flows [Abstract]
NET EARNINGS	$ 1,452.5		$ 1,515.9	$ 1,405.8
Adjustments to reconcile net earnings to cash flows provided by operating activities:
Depreciation and amortization	277.9		266.6	251.2
Deferred income taxes	(15.3)		(37.9)	33.7
Stock-based compensation expense	143.2		117.1	82.0
Excess tax benefit related to exercise of stock options and restricted stock	68.4		49.9	16.2
Net pension expense	17.6		24.3	37.6
Net realized gain from the sales of marketable securities	(4.9)		(16.5)	(28.6)
Net amortization of premiums and accretion of discounts on available-for-sale securities	(100.3)		(94.4)	(79.3)
Goodwill impairment	0.0		0.0	42.7
Gains on sales of buildings	0.0		0.0	(2.2)
Gain on sale of discontinued businesses, net of tax	(78.4)		(10.5)	(36.7)
Other	6.7		17.0	11.9
Changes in operating assets and liabilities, net of effects from acquisitions and divestitures of businesses:
Increase in accounts receivable	(175.1)		(170.7)	(183.7)
Increase in other assets	(109.1)		(246.2)	(273.8)
Increase / (decrease) in accounts payable	13.1		9.6	(10.6)
Increase in accrued expenses and other liabilities	122.1		263.8	115.2
Proceeds from the sale of notes receivable	226.7		0.0	0.0
Operating activities of discontinued operations	(3.3)		44.4	69.6
Net cash flows provided by operating activities	1,905.6		1,821.4	1,577.2
Cash Flows from Investing Activities:
Purchases of corporate and client funds marketable securities	(5,047.6)		(3,414.9)	(4,902.6)
Proceeds from the sales and maturities of corporate and client funds marketable securities	3,841.0		2,059.5	3,638.6
Net (increase) / decrease in restricted cash and cash equivalents held to satisfy client funds obligations	(2,960.6)		2,537.8	(161.0)
Capital expenditures	(158.8)		(159.8)	(130.3)
Additions to intangibles	(176.7)		(143.6)	(104.9)
Acquisitions of businesses, net of cash acquired	(8.1)		0.0	(42.0)
Proceeds from the sale of property, plant, and equipment and other assets	23.6		0.4	10.0
Dividend received from CDK Global, Inc.	825.0		0.0	0.0
Cash retained by CDK Global, Inc.	(180.0)		0.0	0.0
Other	0.0		0.0	0.7
Proceeds from the sale of businesses included in discontinued operations	98.6		24.4	161.4
Investing activities of discontinued operations	(16.7)		(90.5)	(48.3)
Net cash flows (used in) provided by investing activities	(3,760.3)		813.3	(1,578.4)
Cash Flows from Financing Activities:
Net increase / (decrease) in client funds obligations	6,074.4		(2,989.5)	1,138.5
Payments of debt	(2.3)		(3.3)	(17.5)
Repurchases of common stock	(1,557.2)		(667.3)	(647.3)
Proceeds from stock purchase plan and exercises of stock options	109.1		194.2	205.7
Excess tax benefit related to exercise of stock options and restricted stock	68.4		49.9	16.2
Dividends paid	(927.6)		(883.1)	(805.5)
Net (repayments of) / proceeds from reverse repurchase agreements	0.0		(245.9)	245.9
Net (repayments of) / proceeds from issuance of commercial paper	(2,173.0)		2,173.0	0.0
Other	23.4		(1.1)	0.0
Financing activities of discontinued operations	1.5		14.9	15.0
Net cash flows provided by / (used in) financing activities	1,616.7		(2,358.2)	151.0
Effect of exchange rate changes on cash and cash equivalents	(106.3)		8.0	1.2
Net change in cash and cash equivalents	(344.3)		284.5	151.0
Cash and cash equivalents, beginning of period	1,983.6		1,699.1	1,548.1
Cash and cash equivalents, end of period	1,639.3		1,983.6	1,699.1
Less cash and cash equivalents of discontinued operations, end of period	0.0		399.6	294.9
Cash and cash equivalents of continuing operations, end of period	$ 1,639.3	[1]	$ 1,584.0	$ 1,404.2

[1] (A) As of June 30, 2014, $2,015.8 million of short-term marketable securities and $183.8 million of cash and cash equivalents are related to the Company's outstanding commercial paper borrowings (see Note 8).